Yup, as usual I'm well ahead of the curve... (1)
Andre "Mr Leading Edge" Jute
(1) That is, if the curve is drawn pretty close to home, and doesn't include any steep hills. I've worked out long since that the sunlight in 21 days on my patch of beautiful West Cork would electrify me for 9km. I've since discovered that, with pedaling, the motor is about twice as economical as I first expected/assumed (maybe mashers are just more powerful pedalers). So, as long as I want to tour only 18km in 21 days, that solar pedal scheme would be brilliant. Pity it's so ugly and clumsy.